This picture of the incan city of machu picchu shows an agricultural technique used by incan farmers who adapted to their mountainous environment. which of the following terms describes this agricultural technique?

a. terracing

b. commercial farming

c. silver mining

d. slash-and-burn

Were the first to arrive in nowth america. asian french

The african continent is home of the worlds largest desert and longest river . t or f

All of the following statements about the biosphere are true except: a. light and heat from the sun do not affect the biosphere. b. the biosphere gets resources from earth's crust, hydrosphere and atmosphere. c. like "biology", the name for the biosphere comes from the greek word for life. d. the biosphere includes all living organisms on earth's surface.